At any rate, while these individuals may still find communication to be a chore at times, it is still more or less manageable for them. On the other hand, those who have been deaf since early childhood or even birth have a much harder time getting by in society. Since they have never been able to hear, they will be unlikely to be capable of producing anything more than inarticulate groans, moans and other sounds. Thus, in order to alleviate their difficulty, there are those throughout the years who have come up with sign language. And of course, there have also been those throughout the years who have succeeded in their chosen field in spite of their disability, mainly thanks to sign language. One of the most well-known examples of this is Helen Keller, who managed to become a celebrated author in spite of being both deaf and blind (Bauman 7). Sign language has existed since deaf people have been around. Various studies have allowed important individuals to develop new systems of sign languages based on the local sign languages being used. The establishment of teaching institutions that focuses on educating the deaf and mute with Sign Language has allowed the development of a standardized sign language system. Although standardized, a sign language may still have variations in dialects based on the region and cultural differences. A sign language uses visual sign patterns to transmit meanings instead of acoustic patterns. It uses hand shapes as well as well as facial expressions and body movements that convey specific meanings. Sign Language is known to have started where deaf people exist. It is comprised of gestures, finger spelling, and signs that could represent words or complete thoughts.